I'm trying to get this to work with libusboop.pas but I'm getting a compiler
error I don't really know how to fix:
157 Constructor TSNAPIDevice.Create(idVendor, idProduct: LongInt; AConfig,
AInterface, AAltInterface: LongInt);
158 Var Intf : Plibusb_interface_descriptor;
159 Begin
160 inherited Create(idVendor,idProduct,AConfig);
161 { create USB interface }
162 Intf := TLibUsbDevice.FindInterface(AInterface,AAltInterface,FDevice); {
better: search for iInterface = "SNAPI Command Interface" }
163 FSNAPICommandInterface := TLIBUSBPseudoHIDInterface.Create(Self,Intf);
164 FSNAPICommandInterface.OnIntrReport := @IntrReport;
165 End;
First compilation of i:\programming\pas-libusb_test_dll\src\examples\snapi.pas
snapi.pas(160,28) Error: Incompatible type for arg no. 1: Got "LongInt",
expected "TLibUsbContext"
snapi.pas(162,72) Error: Wrong number of parameters specified for call to
"FindInterface"
libusboop.pas(911,24) Error: Found declaration:
FindInterface(TLibUsbInterfaceMatchMethod):^libusb_interface_descriptor;
libusboop.pas(943,24) Error: Found declaration:
FindInterface(TLibUsbInterfaceMatchClass;Boolean=`TRUE`):^libusb_interface_descriptor;
libusboop.pas(958,24) Error: Found declaration:
FindInterface(TLibUsbInterfaceMatchFunc;Pointer):^libusb_interface_descriptor;
libusboop.pas(981,24) Error: Found declaration:
FindInterface(Byte;Byte):^libusb_interface_descriptor;
libusboop.pas(991,24) Error: Found declaration:
FindInterface:^libusb_interface_descriptor;
snapi.pas(432) Fatal: There were 7 errors compiling module, stopping
snapi.pas(0) Fatal: Compilation aborted
I've put my attempt on my repository in the TEST branch here:
https://github.com/Zaaphod/pas-libusb/blob/Test/src/examples/snapi.pas
I don't really understand how this inherited stuff and constructors and all
that works.. but I figure if I get snapi.pas to compile correctly with
libusboop.pas then I will have an example of how to create the
TLIBUSBPseudoHIDInterface for my device... but maybe I need to do it completely
differently than this? Sorry I'm so confused.
James
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